42-Alcu/src/game.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   game.c                                             :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: dgaillet <dgaillet@student.42lyon.fr>      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2026/03/28 21:14:00 by dgaillet          #+#    #+#             */
/*   Updated: 2026/03/28 21:41:04 by dgaillet         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include "../libft/libft.h"
#include "alcu.h"
#include "get_next_line.h"

static int	check_char_int(char *str)
{
	int	i;

	i = -1;
	while (str[++i] && i < 100)
		if (!(str[i] >= '0' && str[i] <= '9') && str[i] != '\n')
			return (0);
	return (1);
}

static int	play_choice(int *line, int choice)
{
	if (choice > 0 && choice < 4)
	{
		if (choice > *line)
		{
			ft_putstr_fd("-\nInvalid choice\n", 1);
			return (0);
		}
		*line -= choice;
		return (1);
	}
	else
	{
		ft_putstr_fd("-\nInvalid choice\n", 1);
		return (0);
	}
}

static void	player_turn(int *line)
{
	char	*temp;
	int		choice;

	while (1)
	{
		ft_putstr_fd("\nPlease choose between 1 and 3 items\n", 1);
		temp = get_next_line(0);
		if (temp && ft_strlen(temp) > 0)
		{
			if (!check_char_int(temp))
			{
				free(temp);
				continue ;
			}
			choice = ft_atoi(temp);
			if (play_choice(line, choice))
				break ;
		}
		else
			ft_putstr_fd("-\nInvalid choice\n", 1);
		if (temp)
			free(temp);
	}
}

static void	play_turns(int *lines, int i, int *ai_turn, int size)
{
	int	choice;

	while (lines[i] != 0)
	{
		ft_putstr_fd("\n------------------------------\n", 1);
		if (!*ai_turn)
		{
			print_board(lines, size);
			player_turn(&lines[i]);
		}
		else
		{
			print_board(lines, size);
			ft_putstr_fd("\n", 1);
			choice = ai(lines, size);
			ft_putstr_fd("AI play ", 1);
			ft_putnbr_fd(choice, 1);
			ft_putstr_fd("\n", 1);
			lines[i] -= choice;
		}
		*ai_turn = *ai_turn == 0;
	}
}

void	game(int *lines, int size)
{
	int	ai_turn;
	int	i;

	ai_turn = 1;
	i = size - 1;
	while (i >= 0)
	{
		play_turns(lines, i, &ai_turn, size);
		i--;
	}
	if (!ai_turn)
		ft_putstr_fd("AI win ! It will replace you\n", 1);
	else
		ft_putstr_fd("You win ! Well done\n", 1);
}